Speculations are rife in the tinsel town that star actress Sai Pallavi is in talks to headline a biopic on legendary Carnatic singer MS Subbulakshmi. The ambitious project is said to be initiated by director Gowtam Tinnanuri. According to sources, he had reportedly approached the actress and even gave her a detailed narration. While discussions are ongoing, Sai Pallavi is yet to give her final nod to the film. Most challenging role, yet Sai Pallavi is currently working on the much-awaited Ramayana. She stars alongside Ranbir Kapoor.